Title:
METHOD FOR PRODUCING SPHERICAL SILVER POWDER
Document Type and Number:
WIPO Patent Application WO/2020/017564
Kind Code:
A1
Abstract:
The present invention provides: a method for producing a spherical silver powder, which is capable of easily producing a spherical silver powder that is suppressed in variation of the primary particle diameter in comparison to conventional spherical silver powders; and a spherical silver powder which is produced by this production method. A method for producing a spherical silver powder according to the present invention comprises a reduction precipitation step wherein silver particles are precipitated by reduction by mixing a reducing agent, which is composed of hydrazine carbonate, into an aqueous reaction system that contains silver ions.
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Inventors:
OTSUBO KEMMEI (JP)
HIRATA KOJI (JP)
HIRATA KOJI (JP)
Application Number:
PCT/JP2019/028139
Publication Date:
January 23, 2020
Filing Date:
July 17, 2019
Export Citation:
Assignee:
DOWA ELECTRONICS MATERIALS CO (JP)
International Classes:
B22F9/24; B22F1/065; B22F1/05
Domestic Patent References:
WO2016093223A1 | 2016-06-16 | |||
WO2014104032A1 | 2014-07-03 |
Foreign References:
CN106614736A | 2017-05-10 | |||
JP2005220380A | 2005-08-18 | |||
JP2009235474A | 2009-10-15 | |||
JP2010070793A | 2010-04-02 |
Other References:
See also references of EP 3825040A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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